Single database for multiple shops

Use ActsAsTenant as Multi-tenancy for shops

See below files:
- app/controllers/concern/multi_tenancy.rb
- app/models/application_record.rb
- app/models/shop.rb

An initializer can be created to control option in ActsAsTenant.
config/initializers/acts_as_tenant.rb
require 'acts_as_tenant/sidekiq'
ActsAsTenant.configure do |config|
  config.require_tenant = false # true
end

more details: https://github.com/ErwinM/acts_as_tenant

app/controllers/origami/alipay_controller.rb

@@ -11,7 +11,7 @@ class Origami::AlipayController < BaseOrigamiController
     end
     total = 0
     @alipaycount = 0
-    @shop        = Shop.first 
+    @shop        = Shop.current_shop 
     @rounding_adj = 0
     @can_alipay = 0
     @member_discount = 0
@@ -64,7 +64,7 @@ class Origami::AlipayController < BaseOrigamiController
     ref_no = params[:ref_no]
     if(Sale.exists?(sale_id))
       saleObj = Sale.find(sale_id)
-      shop_details =  Shop.first 
+      shop_details =  Shop.current_shop 
       
       # rounding adjustment
       # if shop_details.is_rounding_adj
@@ -88,6 +88,6 @@ class Origami::AlipayController < BaseOrigamiController
   #Shop Name in Navbor
   helper_method :shop_detail
   def shop_detail
-    @shop = Shop.first
+    @shop = Shop.current_shop
   end
 end